"This operation requires IIS integrated pipeline mode." debugging in VS2012

Question

Visual Studio 2013 created Web App using ASP.NET MVC, Owin, WebAPI. Everything runs fine in VS 2013. However, when I debug in VS 2012 I get the error: "This operation requires IIS integrated pipeline mode."

I don't know how I can change the IIS settings for the Dev instance. Other similar solutions do not apply because of this.

"This operation requires IIS integrated pipeline mode."

Stack Trace:

[PlatformNotSupportedException: This operation requires IIS integrated pipeline mode.]
System.Web.HttpResponse.get_Headers() +9743542
System.Web.HttpResponseWrapper.get_Headers() +9
Microsoft.Owin.Host.SystemWeb.CallHeaders.AspNetResponseHeaders..ctor(HttpResponseBase response) +72
Microsoft.Owin.Host.SystemWeb.OwinCallContext.CreateEnvironment() +434
Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.GetInitialEnvironment(HttpApplication application) +303
Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContext.PrepareInitialContext(HttpApplication application) +65
Microsoft.Owin.Host.SystemWeb.IntegratedPipeline.IntegratedPipelineContextStage.BeginEvent( Object sender, EventArgs e, AsyncCallback cb, Object extradata) +622
System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +285
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

score 5 · Answer 1 · answered May 06 '15 at 02:35

I had the exact same issue. Some of the developers in our team had VS2013 and some VS2012.

To fix this to do the following:

Go into Project properties. Select Web Tab. Select "Use Local IIS Web server" Check "Use IIS Express"

This fixed the issue for us. Hope it helps.

score 1 · Accepted Answer · answered May 05 '14 at 15:57

1

This seems to be an issue when running a 2013 created web app in 2012. The only way I was able to get it to work was to go back to 2013.

answered May 05 '14 at 15:57

Ryan Langton

6,294
15
53
103

1

This resolved the problem. http://weblogs.asp.net/scottgu/introducing-iis-express – Oleksandr Fentsyk Jul 08 '14 at 10:57

score 1 · Answer 3 · edited Aug 18 '17 at 19:17

1

If You are Using Visual Studio 2012.Then Follow the Following Step

Go To Solution Explorer
Right Click on the Project
Click on "Use IIS Express"

edited Aug 18 '17 at 19:17

Jeru Luke

20,118
13
80
87

answered Aug 18 '17 at 18:58

Naga Veerendra Parvataneni

1
3

Yep, I think this is what you need to do for asp.net websites. For web applications, use the Project's properties pages. – monty Jul 30 '18 at 01:54

score 1 · Answer 4 · answered Feb 08 '18 at 07:15

1

I try this working :

1- ISS Application Pools PipelineMode change Integrated Mode

2- check Start application pool immediately

3- Authentication in ASP.NET Impersonation Disabled

Thats Enought.

answered Feb 08 '18 at 07:15

Talha Baktir

41
6

1

This worked for us! Should use this option if you already have IIS set up and don't want to launch an express instance. – ruiyang Aug 01 '19 at 20:14

"This operation requires IIS integrated pipeline mode." debugging in VS2012

4 Answers4